MAX3262 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Single +5V, Fully Integrated, 155Mbps Laser Diode Driver

19-0432; Rev 1b; 4/98
Single +5V, Fully Integrated,
155Mbps Laser Diode Driver
________________General Description
The MAX3263 is a complete, easy-to-program, single
+5V-powered, 155Mbps laser diode driver with com-
plementary enable inputs and automatic power control
(APC). The MAX3263 accepts differential PECL inputs
and provides complementary output currents. A tem-
perature-stabilized reference voltage is provided to
simplify laser current programming. This allows modu-
lation current to be programmed up to 30mA and bias
current to be programmed from up to 60mA with two
external resistors.
An APC circuit is provided to maintain constant laser
power in transmitters that use a monitor photodiode.
Only two external resistors are required to implement
the APC function.
The MAX3263’s fully integrated feature set includes a
TTL-compatible laser failure indicator and a program-
mable slow-start circuit to prevent laser damage. The
slow-start is preset to 50ns and can be extended by
adding an external capacitor.
____________________________Features
o Rise Times Less than 1ns
o Differential PECL Inputs
o Single +5V Supply
o Automatic Power Control
o Temperature-Compensated Reference Voltage
o Complementary Enable Inputs
_______________Ordering Information
PART
MAX3263CAG
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
24 SSOP
________________________Applications
Laser Diode Transmitters
155Mbps SDH/SONET
155Mbps ATM
___________________Pin Configuration
TOP VIEW
VREF2 ₁
IPINSET ₂
FAILOUT ₃
GNDB ₄
VIN+ ₅
VIN- ₆
GNDB ₇
VCCB ₈
ENB- ₉
ENB+ ₁₀
VREF1 ₁₁
OSADJ ₁₂
MAX3263
SSOP
24 ^SLWSTRT
23 ^IPIN
22 ^VCCA
21 ^GNDA
20 ^OUT+
19 GNDA
18 OUT-
17 GNDA
16 ^IBIASOUT
15 ^IMODSET
14 ^IBIASSET
13 IBIASFB
_____________Typical Operating Circuit
+5V
0.01µF
+5V
0.01µF
PECL
INPUTS
VCCA VCCB
VIN+
OUT+
VIN-
GNDA
GNDB
IPIN
PHOTO-
DIODE
+5V
LASER
MAX3263
ENB+
IBIASOUT
ENB-
SLWSTRT
VREF1
OUT-
FAILOUT
IBIASFB
VREF2
IMODSET IBIASSET
OSADJ
IPINSET
FERRITE BEAD
+5V
2.7k
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone [phone].
For small orders, phone [phone].